Basic support for overlay PR analysis #7051

Job	Run time
Packaging: Config file (macos-latest, nightly-latest)	1m 28s
Packaging: Config file (macos-latest, linked)	1m 12s
Packaging: Config file (ubuntu-latest, linked)	1m 17s
Packaging: Config file (ubuntu-latest, nightly-latest)	1m 22s
Packaging: Config file (macos-latest, default)	1m 24s
Packaging: Config file (ubuntu-latest, default)	1m 16s
Packaging: Config file (windows-latest, linked)	4m 10s
Packaging: Config file (windows-latest, default)	3m 41s
Packaging: Config file (windows-latest, nightly-latest)	5m 45s
	21m 35s

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